In Yunnan, China, a massive mound of shells discovered in the ruins of a 3,000-year-old settlement may shed light on the diet of an ancient society and their architectural prowess.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
